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In the given figure, D is mid-point of side BC, the area of triangle BEA is equal to area of triangle :

In the given figure, D is mid-point of side BC, the area of triangle BEA is equal to area of triangle : Area Theorems, Concise Mathematics Solutions ICSE Class 9.
  1. BED

  2. CED

  3. CEA

  4. ACD

Theorems on Area

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Answer

In △ ABC,

Since, D is the mid-point of side BC.

∴ AD is the median of BC.

∴ Area of △ ABD = Area of △ ACD (As, median of a triangle divides it into two triangles of equal areas.) ………..(1)

In △ EBC,

Since, D is the mid-point of side BC.

∴ ED is the median of BC.

∴ Area of △ EBD = Area of △ ECD (As, median of a triangle divides it into two triangles of equal areas.) ………(2)

Subtracting equation (2) from (1), we get :

⇒ Area of △ ABD - Area of △ EBD = Area of △ ACD - Area of △ ECD

⇒ Area of △ BEA = Area of △ CEA.

Hence, Option 3 is the correct option.

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